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Dell EMC PowerEdge R740xd: технические характеристики и спецификации
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Сервер Dell PowerEdge R740XD Server 210-AKZR]
Сервер Dell PowerEdge R740XD Server 210-AKZR]
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Dell EMC PowerEdge R740xd: технические характеристики и спецификации

System dimensions

This section describes the physical dimensions of the system.

Figure 1. System dimensions of PowerEdgeR740xd system
This image shows system dimensions of PowerEdge R740xd system.
Table 1. DimensionsThis table gives details of the dimensions of the R740xd system:
SystemXaXbYZa (with bezel)Za (without bezel)Zb Zc
PowerEdgeR740xd482.0 mm

(18.98 inches)

434.0 mm

(17.09 inches)

86.8 mm (3.42 inches)35.84 mm

(1.41 inches)

22.0 mm

(0.87 inches)

678.8 mm (26.72 inches)715.5 mm (28.17 inches)

Chassis weight

Table 1. Chassis weightThe table below shows the maximum weight of the R740xd system:
System Maximum weight (with all drives/SSDs)
2.5 inch drive systems 28.1 kg (61.95 lb)
3.5 inch drive systems 33.1 kg (72.91 lb)

Processor specifications

The PowerEdge R740xd system supports up to two Intel Xeon Processor Scalable Family processors, up to 28 cores per processor.

NOTE: Processor sockets are not hot pluggable.

Supported operating systems

The PowerEdge R740xd supports the following operating systems:

Canonical Ubuntu LTS

Citrix XenServer

Microsoft Windows Server with Hyper-V

Red Hat Enterprise Linux

SUSE Linux Enterprise Server

VMware ESXi

NOTE: For more information, go to www.dell.com/ossupport.

PSU specifications

The PowerEdge R740xd system supports up to two AC or DC power supply units (PSUs).

Table 1. PSU specifications

The table below are the specifications for 495 W, 750 W, 1100 W, 1600 W, 2000 W and 2400 W power supplies:

PSU Class Heat dissipation (maximum) Frequency Voltage High line 200v240 V Low line 100– 140 V DC Current
495 W AC Platinum 1908 BTU/hr 50/60 Hz 100–240 V AC, autoranging 495 W 495 W NA 6.5 A–3 A
750 W AC Platinum 2891 BTU/hr 50/60 Hz 100–240 V AC, autoranging 750 W 750 W NA 10 A–5 A
750 W AC Titanium 2843 BTU/hr 50/60 Hz 200–240 V AC, autoranging 750 W NA 5 A
750 W Mixed Mode HVDC (for China only) Platinum 2891 BTU/hr 50/60 Hz 100–240 V AC, autoranging 750 W 750 W NA 10 A–5 A
Platinum 2891 BTU/hr N/A 240 V DC, autoranging NA NA 750W 4.5 A
750 W Mixed Mode Platinum 2891 BTU/hr 50/60 Hz 100–240 V AC, autoranging 750 W 750 W NA 10 A–5 A
Platinum(For China only) 2891 BTU/hr N/A 240 V DC, autoranging NA NA 750 W 5 A
1100 W AC Platinum 4100 BTU/hr 50/60 Hz 100–240 V AC, autoranging 1100 W 1050 W 12 A–6.5 A
1100 W DC N/A 4416 BTU/hr N/A –(48 V to –60 V) DC, autoranging NA NA 1100 W 32 A
1100 W Mixed Mode HVDC (for China and Japan only) Platinum 4100 BTU/hr 50/60 Hz 100–240 V AC, autoranging 1100 W 1050 W 12 A–6.5 A
N/A 4100 BTU/hr N/A 200–380 V DC, autoranging NA NA 1100 W 6.4 A–3.2 A
1600 W AC Platinum 6000 BTU/hr 50/60 Hz 100–240 V AC, autoranging 1600 W 800 W NA 10 A
2000 W AC Platinum 7500 BTU/hr 50/60 Hz 100–240 V AC, autoranging 2000 W 1000 W NA 11.5 A
2400 W AC Platinum 9000 BTU/hr 50/60 Hz 100–240 V AC, autoranging 2400 W 1400 W NA 16 A
NOTE: Heat dissipation is calculated using the PSU wattage rating.
NOTE: This system is also designed to connect to the IT power systems with a phase to phase voltage not exceeding 240 V.
NOTE: PSUs rated for 1100 W Mixed Mode HVDC or 1100 W AC and higher require high-line voltage (200–240 V AC) to supply their rated capacity.

System battery specifications

The PowerEdge R740xd system supports CR 2032 3.0-V lithium coin cell system battery.

Expansion bus specifications

The PowerEdge R740xd system supports up to eight PCI express (PCIe) generation 3 expansion cards that can be installed on the system board using expansion card risers. The following table provides detailed information about the expansion card riser specifications:

Table 1. Expansion card riser configurationsThis table provides information about the expansion card riser configuration for PowerEdge R740xd system.
Expansion card riser PCIe slots on the riser Height Length Link
Riser 1A Slot 1 Full Height Full Length x16
Slot 3 Full Height Half Length x16
Riser 1B Slot 1 Full Height Full Length x8
Slot 2 Full Height Full Length x8
Slot 3 Full Height Half Length x8
Riser 1D Slot 1 Full Height Full Length x16
Slot 2 Full Height Full Length x8
Slot 3 Full Height Half Length x8
Riser 2A or 2E or 2D or 2F Slot 4 Full Height Full Length x16
Slot 5 Full Height Full Length x8
Slot 6 Low Profile Half Length x8
Riser 2B Slot 4 Low Profile Half Length x8
Riser 2C Slot 4 Low Profile Half Length x16
Riser 3A or 3B Slot 7 Full Height Full Length x8
Slot 8 Full Height Full Length x16
Table 2. Expansion card riser specificationsThis table provides information about the expansion card riser configuration for PowerEdge R740xd system.
Riser configuration and supported risers Slot description PCIe slots on riser 1 (Height and length) Processor connection PCIe slots on riser 2 (Height and length) Processor connection PCIe slots on riser 3 (Height and length) Processor connection
Riser configuration 0 with or without rear storage (No riser) No PCIe slots (only rear storage) N/A N/A N/A N/A N/A N/A
Riser configuration 1 with or without rear storage (1B+2 B) Four x8 slots and rear storage Slot 1: x8 full-height, full length Processor 1 Slot 4: x8 low profile, half length Processor 1 N/A N/A
Slot 2: x8 full-height, full length Processor 1
Slot 3: x8 full-height, half length Processor 1
Riser configuration 2 with or without rear storage (1B+2C) Three x8 and one x16 slots and rear storage Slot 1: x8 full-height, full length Processor 1 Slot 4: x16 low profile, half length Processor 2 N/A N/A
Slot 2: x8 full-height, full length Processor 1
Slot 3: x8 full-height, half length Processor 1
Riser configuration 3 (1A+2A) Two x8 and three x16 slots Slot 1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 N/A N/A
N/A N/A Slot 5: x8 full-height, full length Processor 2
Slot 3: x16 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 4 (1A+2A+3A) Three x8 and four x16 slots Slot 1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
N/A N/A Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x16 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 15 (1A+2E+3B) Three x8 and four x16 slots Slot 1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
N/A N/A Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x16 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 5 (1B+2A+3A) Six x8 and two x16 slots Slot 1: x8 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
Slot 2: x8 full-height, full length Processor 1 Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x8 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 6 (1D+2A+3A) Five x8 and three x16 slots Slot1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
Slot 2: x8 full-height, full length Processor 1 Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x8 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 16 (1D+2E+3B) Five x8 and three x16 slots Slot1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
Slot 2: x8 full-height, full length Processor 1 Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x8 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 9 (1A+2D+3A) or Riser configuration 17 (1A+2F+3B) Three x8 and four x16 slots Slot 1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
N/A N/A Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x16 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
NOTE:
  • Riser slots are not hot pluggable.
  • Internal cable connectors are not hot pluggable.

Memory specifications

Table 1. Memory specificationsThe table below shows the memory specifications for the R740xd system:
Memory module sockets DIMM type DIMM rank DIMM capacity Single processor Dual processors
Minimum RAM Maximum RAM Minimum RAM Maximum RAM
Twenty four 288-pins LRDIMM Octa rank 128 GB 128 GB 1.5 TB 256 GB 3 TB
Quad rank 64 GB 64 GB 768 GB 128 GB 1.5 TB
RDIMM Single rank 8 GB 8 GB 96 GB 16 GB 192 GB
Dual rank 16 GB 16 GB 192 GB 32 GB 384 GB
Dual rank 32 GB 32 GB 384 GB 64 GB 768 GB
Dual rank 64 GB 64 GB 768 GB 128 GB 1536 GB
NVDIMM-N Single rank 16 GB Not supported with single processor Not supported with single processor RDIMM: 192 GB RDIMM: 384 GB
NVDIMM-N: 16 GB NVDIMM-N: 192 GB
DCPMM NA 128 GB RDIMM: 192GB RDIMM: 384 GB RDIMM: 384 GB LRDIMM: 1536 GB
DCPMM: 128 GB DCPMM: 128 GB DCPMM: 1536 GB DCPMM: 1536 GB
NA 256 GB NA NA RDIMM: 192 GB LRDIMM: 1536 GB
NA NA DCPMM: 2048 GB DCPMM: 3072 GB
NA 512 GB NA NA RDIMM: 384 GB RDIMM: 1536 GB
NA NA DCPMM: 4096 GB DCPMM: 6144 GB
NOTE: 8 GB RDIMMs and NVDIMM-N must not be mixed.
NOTE: 64 GB LRDIMMs, 128 GB LRDIMMs must not be mixed.
NOTE: Minimum of two CPUs are required for any configurations that support NVDIMM-N.
NOTE: DCPMM can be mixed with RDIMMs and LRDIMMs.
NOTE: Mixing of DDR4 DIMM Types (RDIMM, LRDIMM), within channel, integrated memory controller, socket, or across sockets is not supported.
NOTE: x4 and X8 DDR4 DIMM can be mixed within channel.
NOTE: Mix of Intel Data center persistent memory module operating modes (App Direct, Memory Mode) is not supported within socket or across sockets.
NOTE: Memory DIMM slots are not hot pluggable.

Storage controller specifications

The PowerEdge R740xd system supports:

  • Internal storage controller cards: PowerEdge RAID Controller PERC H730P, PERC H740P, HBA330, S140, Boot Optimized Server Storage (BOSS-S1), H750 (adapter only) and HBA350i

    The BOSS card is a simple RAID solution card designed specifically for booting a server's operating system. The card supports up to two 6 Gbps M.2 SATA drives. The BOSS adapter card has a x8 connector using PCIe gen 2.0 x2 lanes, available only in the low-profile and half-height form factor.

  • External storage controller cards: PERC H840, 12Gbps SAS HBA, and HBA355e.
NOTE: Mini-PERC socket is not hot pluggable.
NOTE: H750 and HBA350i cards cannot be mixed with H730P, H740P, and HBA330 cards.

Drives

The PowerEdge R740XD system supports SAS, SATA, Nearline SAS hard drives/SSDs, or NVMe drives.

Table 1. Supported drive options for the PowerEdge R740XD system

This table lists out the supported drive and SSD options for the PowerEdge R740XD system:

Configuration Description
12 drives system Up to 12 3.5 inch (SAS, SATA, or Nearline SAS) front accessible drives in slots 0–11
14 drives system            Up to 12 3.5 inch (SAS, SATA, or Nearline SAS) front accessible drives in slots 0–11 and up to two 3.5 inch (SAS, SATA or Nearline SAS) rear accessible drives in slots 12–13
16 drives system            Up to 12 3.5 inch (SAS, SATA, or Nearline SAS) front accessible drives in slots 0–11 and up to four 2.5 inch (SAS, SATA or Nearline SAS) rear accessible drives in slots 12–15
18 drives system Up to 12 3.5 inch (SAS, SATA, or Nearline SAS) front accessible drives in slots 0–11, up to four 3.5 inch (SAS, SATA, or Nearline SAS) mid drives in slots 14–17, and up to two 3.5 inch (SAS, SATA or Nearline SAS) rear accessible drives in slots 12–13
20 drives system Up to 12 3.5 inch (SAS, SATA, or Nearline SAS) front accessible drives in slots 0–11, up to four 3.5 inch (SAS, SATA, or Nearline SAS) mid drives in slots 16–19, and up to four 2.5 inch (SAS, SATA or Nearline SAS) rear accessible drives in slots 12–15
24 drives system Up to 24 2.5 inch (SAS, SSD, or NVMe) front accessible drives in slots 0–23
24 drives system Up to 12 2.5 inch (SAS, SSD) front accessible drives in slots 0–11 and up to 12 2.5 inch SATA/SAS/NVMe drives in 12 universal slots 12–23
24 drives system Up to 24 2.5 inch NVMe drives in bay 1 (slots 0–11) and bay 2 (slots 0–11)
24 drives system Up to 24 2.5 inch NVME drives or up to eight 2.5 inch (SAS or SATA) drives in bay 1 (slots 0–7) with NVMe drives in other slots
28 drives system Up to 24 2.5 inch (SAS, SSD, or NVMe) front accessible drives in slots 0–23 and up to four 2.5 inch (SAS, SSD, or NVMe) rear accessible drives in slots 24–27.
32 drives system Up to 24 2.5 inch (SAS, SSD, or NVMe) front accessible drives in slots 0–23, up to four 2.5 inch (SAS, SSD, or NVMe) mid drives in slots 28–31, and up to four 2.5 inch (SAS, SSD, or NVMe) rear accessible drives in slots 24–27
NOTE: Universal slots are slots that support SAS, SATA hard drives/SSDs, or NVMe drives in the same slot.

USB ports

The PowerEdge R740xd system supports:

  • Two USB 2.0-compliant ports on the front of the system
  • One internal USB 3.0-compliant port
  • One micro USB 2.0-compliant port in the front of the system for iDRAC Direct
  • Two USB 3.0-compliant ports on the back of the system

NIC ports

The PowerEdge R740xd system supports up to four Network Interface Controller (NIC) ports that are integrated on the network daughter card (NDC), and are available in the following configurations:
  • Four RJ-45 ports that support 10, 100 and 1000 Mbps
  • Four RJ-45 ports that support 100 M, 1 G and 10 Gbps
  • Four RJ-45 ports, where two ports support maximum of 10 G and the other two ports maximum of 1 G
  • Two RJ-45 ports that support up to 1 Gbps and 2 SFP+ ports that support up to 10 Gbps
  • Four SFP+ ports that support up to 10 Gbps
  • Two SFP28 ports that support up to 25 Gbps
NOTE: You can install up to eight PCIe add-on NIC cards.
NOTE: NDC slot is not hot pluggable.

VGA ports

The Video Graphic Array (VGA) port enables you to connect the system to a VGA display. The PowerEdge R740xd system supports two 15-pin VGA ports on the front and back panels.

NOTE: The VGA ports are not hot pluggable.

Serial connector

The PowerEdge R740xd system supports one serial connector on the back panel, which is a 9-pin connector, Data Terminal Equipment (DTE), 16550-compliant.

NOTE: The Serial port is not hot pluggable.

Internal Dual SD Module or vFlash card

The PowerEdge R740xd system supports Internal Dual SD module (IDSDM) and vFlash card. In 14th generation of PowerEdge servers, IDSDM and vFlash card are combined into a single card module, and are available in these configurations:

  • vFlash or
  • IDSDM or
  • vFlash and IDSDM

The IDSDM/vFlash card sits in the back of the system, in a Dell-proprietary slot. IDSDM/vFlash card supports three micro SD cards (two cards for IDSDM and one card for vFlash). Micro SD cards capacity for IDSDM are 16/32/64 GB while for vFlash the microSD card capacity is 16 GB.

NOTE: IDSDM and vFlash slot is not hot pluggable.

Video specifications

The PowerEdge R740xd system supports integrated Matrox G200eW3 graphics controller with 16 MB of video frame buffer.

Table 1. Supported video resolution optionsThis table describes the supported video resolution options:
Resolution Refresh rate (Hz) Color depth (bits)
1024 x 768 60 8, 16, 32
1280 x 800 60 8, 16, 32
1280 x 1024 60 8, 16, 32
1360 x 768 60 8, 16, 32
1440 x 900 60 8, 16, 32
1600 x 900 60 8, 16, 32
1600 x 1200 60 8, 16, 32
1680 x 1050 60 8, 16, 32
1920 x 1080 60 8, 16, 32
1920 x 1200 60 8, 16, 32
NOTE: 1920 x 1080 and 1920 x 1200 resolutions are only supported in reduced blanking mode.

Environmental specifications

NOTE: For additional information about environmental certifications, please refer to the Product Environmental Datasheet located with the Manuals & Documents on www.dell.com/poweredgemanuals.
Table 1. Temperature specifications

The table below shows the optimal working temperature specifications:

Temperature Specifications
Storage –40°C to 65°C (–40°F to 149°F)
Continuous operation (for altitude less than 950 m or 3117 ft) 10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment.
Maximum temperature gradient (operating and storage) 20°C/h (36°F/h)
Table 2. Relative humidity specifications

The table below shows the relative humidity specification during operations and storage:

Relative humidity Specifications
Storage 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be non-condensing at all times.
Operating 10% to 80% relative humidity with 29°C (84.2°F) maximum dew point.
Table 3. Maximum vibration specifications

The table below shows the maximum vibration specifications during operations and storage:

Maximum vibration Specifications
Operating 0.26 Grms at 5 Hz to 350 Hz (all three axes).
Storage 1.88 Grms at 10 Hz to 500 Hz for 15 min (all six sides tested).
Table 4. Maximum shock specifications

The table below shows the maximum shock specifications during operations and storage:

Maximum shock Specifications
Operating Six consecutively executed shock pulses in the positive and negative x, y, and z axes of 6 G for up to 11 ms.
Storage Six consecutively executed shock pulses in the positive and negative x, y, and z axes (one pulse on each side of the system) of 71 G for up to 2 ms.
Table 5. Maximum altitude specifications

The table below shows the maximum altitude specifications during operations and storage.

Maximum altitude Specifications
Operating

3048 m (10,000 ft)

Storage 12,000 m (39,370 ft)
Table 6. Operating temperature de-rating specifications

The table below shows the operating temperature de-rating specifications:

Operating temperature de-rating Specifications
Up to 35°C (95°F) Maximum temperature is reduced by 1°C/300 m (1.8°F/547 ft) above 950 m (3,117 ft).
35°C to 40°C (95°F to 104°F) Maximum temperature is reduced by 1°C/175 m (1.8°F/319 ft) above 950 m (3,117 ft).
40°C to 45°C (104°F to 113°F) Maximum temperature is reduced by 1°C/125 m (1.8°F/228 ft) above 950 m (3,117 ft).

Standard operating temperature

Table 1. Standard operating temperature specificationsThe standard operating temperature for altitude less than 950 m or 3117 ft ranges 10°C–35°C with no direct sunlight on the equipment and should have 29°C (84.2°F) maximum dew point.
Standard operating temperature Specifications
Continuous operation (for altitude less than 950 m or 3117 ft) 10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment.
Humidity percentage range 10% to 80% Relative Humidity with 29°C (84.2°F) maximum dew point.

Expanded operating temperature

Table 1. Expanded operating temperature specifications

When the system is in continuous operation, the expanded operating temperature ranges from 5°C–40°C at 5% to 85% RH with 29°C dew point.

NOTE: Outside the standard operating temperature (10°C–35°C), the system can operate continuously in temperatures as low as 5°C and as high as 40°C. For temperatures 35°C – 40°C, de-rate maximum allowable temperature by 1°C per 175 m above 950 m (1°F per 319 ft). When the system is operating at < 1% of annual operating hours, the expanded operating temperature is –5°C–45°C at 5% to 90% RH with 29°C dew point.
NOTE: Outside the standard operating temperature (10°C–35°C), the system can operate down to –5°C or up to 45°C for a maximum of 1% of its annual operating hours. For temperatures between 40°C and 45°C, de-rate maximum allowable temperature by 1°C per 125 m above 950 m (1°F per 228 ft).
Expanded operating temperature Specifications
≤ 10% of annual operating hours 5°C to 40°C at 5% to 85% RH with 29°C dew point.
NOTE: Outside the standard operating temperature (10°C to 35°C), the system can operate down to 5°C or up to 40°C for a maximum of 10% of its annual operating hours.

For temperatures between 35°C to 40°C, de-rate maximum allowable temperature by 1°C per 175 m above 950 m (1.8°F per 319 ft).

≤ 1% of annual operating hours –5°C to 45°C at 5% to 90% RH with 29°C dew point.
NOTE: Outside the standard operating temperature (10°C to 35°C), the system can operate down to –5°C or up to 45°C for a maximum of 1% of its annual operating hours.

For temperatures between 40°C and 45°C, de-rate maximum allowable temperature by 1°C per 125 m above 950 m (1.8°F per 228 ft).

NOTE: When operating in the expanded temperature range, system performance may be impacted.
NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported in the System Event Log.

Expanded operating temperature restrictions

  • 128 GB LRDIMM is not supported for FAC.
  • Do not perform a cold startup below 5°C.
  • The operating temperature specified is for a maximum altitude of 3050 m (10,000 ft).
  • 150 W/8 core, 165 W/12 core and higher wattage processor [Thermal Design Power (TDP)>165 W] are not supported.
  • Redundant power supply unit is required.
  • Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported.
  • PCIe SSD is not supported.
  • NVDIMM-Ns are not supported.
  • DCPMMs are not supported.
  • Mid drive tray is not supported.
  • Rear storage devices or drives are not supported.
  • GPU is not supported.
  • Tape backup unit is not supported.

Thermal restrictions

Following table lists the configuration required for efficient cooling.

Table 1. Thermal restrictions configurationFollowing table describes the configuration required for efficient cooling.
Configuration Number of processors Heatsink Processor/DIMM blank DIMM blanks Type of air shroud Fan
PowerEdge R740xd 1 One 1U standard heat sink for CPU ≤ 125 W Required Not required Standard Four standard fans and one blank to cover two fan slots
One 2U standard heat sink for CPU > 125 W
PowerEdge R740xd 2 Two 1U standard heat sink for CPU ≤ 125 W Not required Not required Standard Six standard fans
Two 2U standard heat sink for CPU > 125 W
PowerEdge R740xd with mid bay 1 One 1U high performance heat sink Required Required Not required Six high performance fans
PowerEdge R740xd with mid bay 2 Two 1U high performance heat sink Not required Required Not required Six high performance fans
PowerEdge R740xd with GPU 2 Two 1U high performance heat sink Not required Not required GPU air shroud Six high performance fans
PowerEdge R740xd with rear drive only 1 One 1U standard heat sink for CPU ≤ 125 W Required Not required Standard Six high performance fans
One 2U standard heat sink for CPU > 125 W
PowerEdge R740xd with rear drive only 2 Two 1U standard heat sink for CPU ≤ 125 W Required Not required Standard Six high performance fans
Two 2U standard heat sink for CPU > 125 W

Ambient temperature limitations

The following table lists configurations that require ambient temperature less than 35°C.

NOTE: The ambient temperature limit must be adhered to ensure proper cooling and to avoid excess CPU throttling, which may impact system performance.
Table 1. Configuration based ambient temperature restrictionsThe following table lists configurations that require ambient temperature less than 35°C.
System Backplane Processor Thermal Design Power (TDP) Processor heat sink Fan type GPU Ambient restriction
PowerEdge R740xd 12 x 3.5 inch SAS/SATA + 4 x 3.5 inch + 2 x 3.5 inch 150 W/8 core, 165 W/12 core, 200 W, 205 W 1U high performance High performance fan N/A 25°C
24 x 2.5 inch SAS/SATA + 4 x 2.5 inch + 4 x 2.5 inch N/A 25°C
24 x 2.5 inch SAS/SATA All 30°C
24 x NVMe All except V100 32 GB 30°C
22 x NVMe V100 32 GB 25°C

Particulate and gaseous contamination specifications

The following table defines the limitations that help avoid any equipment damage or failure from particulate and gaseous contamination. If the levels of particulate or gaseous pollution exceed the specified limitations and result in equipment damage or failure, you may need to rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer.
Table 1. Particulate contamination specifications

Air filtration specification: Data center air filtration as defined by ISO Class 8 per ISO 14644-1 should have a 95% upper confidence limit. Note: This condition applies only to data center environments. Air filtration requirements do not apply to IT equipment designed to be used outside a data center, in environments such as an office or factory floor. Note: Air entering the data center must have the MERV11 or MERV13 filtration. Conductive dust specification: Air must be free of conductive dust, zinc whiskers, or other conductive particles. Note: This condition applies to data center and non-data center environments. Corrosive dust specification: Air must be free of corrosive dust. Residual dust present in the air must have a deliquescent point less than 60% relative humidity. Note: This condition applies to data center and non-data center environments.
Particulate contamination Specifications
Air filtration Data center air filtration as defined by ISO Class 8 per ISO 14644-1 with a 95% upper confidence limit.
NOTE: The ISO Class 8 condition applies to data center environments only. This air filtration requirement does not apply to IT equipment designed to be used outside a data center, in environments such as an office or factory floor.
NOTE: Air entering the data center must have MERV11 or MERV13 filtration.
Conductive dust Air must be free of conductive dust, zinc whiskers, or other conductive particles.
NOTE: This condition applies to data center and non-data center environments.
Corrosive dust
  • Air must be free of corrosive dust.
  • Residual dust present in the air must have a deliquescent point less than 60% relative humidity.
NOTE: This condition applies to data center and non-data center environments.
Table 2. Gaseous contamination specifications

The copper coupon corrosion rate is <300 Å/month per Class G1 as defined by ANSI/ISA71.04-2013. The silver coupon corrosion rate is <200 Å/month as defined by ANSI/ISA71.04-2013.
Gaseous contamination Specifications
Copper coupon corrosion rate <300 Å/month per Class G1 as defined by ANSI/ISA71.04-2013.
Silver coupon corrosion rate <200 Å/month as defined by ANSI/ISA71.04-2013.
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.